CN106307967A - Drawing apparatus and drawing method for drawing apparatus - Google Patents

Drawing apparatus and drawing method for drawing apparatus Download PDF

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Publication number
CN106307967A
CN106307967A CN201610511470.3A CN201610511470A CN106307967A CN 106307967 A CN106307967 A CN 106307967A CN 201610511470 A CN201610511470 A CN 201610511470A CN 106307967 A CN106307967 A CN 106307967A
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CN
China
Prior art keywords
mentioned
fingernail
finger
object image
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610511470.3A
Other languages
Chinese (zh)
Other versions
CN106307967B (en
Inventor
手岛义裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Publication of CN106307967A publication Critical patent/CN106307967A/en
Application granted granted Critical
Publication of CN106307967B publication Critical patent/CN106307967B/en
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D29/00—Manicuring or pedicuring implements
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
    • G06T7/33—Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G06T7/74—Determining position or orientation of objects or cameras using feature-based methods involving reference images or patches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A45D2020/126—Stands therefor
    • A45D2020/128—Stands therefor involving features of the hand-held hair dryer
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D29/00—Manicuring or pedicuring implements
    • A45D2029/005—Printing or stamping devices for applying images or ornaments to nails

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  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Ink Jet (AREA)
  • Coating Apparatus (AREA)

Abstract

The invention relates to a drawing apparatus and a drawing method for the drawing apparatus; the drawing apparatus comprises the following units: a drawing unit that performs a drawing on the nail of a finger or a toe having a nail; a control portion controlling motions of the drawing unit. The control portion extracts first and second feature points, obtains a nail position of the second object image according to the first and second feature points, and controls a drawing position of the drawing unit drawing the second drawing on the nail after the second object image is obtained according to the obtained nail position of the second object image.

Description

Plotting unit and the drawing practice of plotting unit
Technical field
The present invention relates to the drawing practice of a kind of plotting unit and plotting unit.
Background technology
In the past, it is known that the nail Printing apparatus of a kind of fingernail design that the finger fingernail printing of people is liked.Such as, in day This nail Printing apparatus recorded by Ben Tebiao 2003-534083 publication.
If using this device, the most not using fingernail salon etc., and can easily enjoy fingernail and print.
But, in the case of the ink using multiple colors carries out the printing of fingernail design, the ink to each color sometimes Water, is repeatedly repeated the steps: after the ink using certain color is drawn, make the ink dried of painting.? In the case of Gai, every time when the ink using each color is drawn, the position as the fingernail of drawing object be the most inclined sometimes Move.
Here, when drawing when the position of fingernail offsets, produce the drawing position of the design for fingernail Put skew, or the first-class problem in position being coated in each colour superimposition, thus be sometimes difficult to high-quality drawing.
Summary of the invention
The advantage that the present invention has the drawing practice that can provide following plotting unit and plotting unit: several times In the case of implementing the drawing that the fingernail to fingernail designs, even if starting fingernail during next is drawn after a drawing terminates In the case of position is moved, it is also possible to prevent from offseting from the position of standard relative to the drawing position of fingernail such that it is able to carry out High-quality drawing.
According to an embodiment of the present invention, it is provided that a kind of plotting unit, it is characterised in that possessing: drawing portion, it is to have The finger of fingernail or toe are object, implement to draw to above-mentioned fingernail；And control portion, it controls the dynamic of above-mentioned drawing portion Making, above-mentioned control portion extracts following characteristic point: (1) the 1st characteristic point, it is that above-mentioned fingernail is not implemented above-mentioned drawing by imaging Above-mentioned object and in the 1st object image that gets, from the 1st object profile of the profile representing above-mentioned object Characteristic point in the 2nd region that 1st region of inner side is removed the region of above-mentioned fingernail and obtained, (2) the 2nd characteristic points, its be The above-mentioned object of imaging after above-mentioned fingernail is implemented the 1st drawing and in the 2nd object image that gets, represent above-mentioned right As thing profile the 2nd object profile inner side the 3rd region in characteristic point, according to above-mentioned 1st characteristic point and the above-mentioned 2nd Characteristic point, obtains the position of above-mentioned fingernail in above-mentioned 2nd object image, according to above-mentioned above-mentioned 2nd object got The position of the above-mentioned fingernail in image, controls above-mentioned drawing portion after obtaining above-mentioned 2nd object image real to above-mentioned fingernail Execute drawing position during the 2nd drawing.
Other embodiments according to the present invention, it is provided that the drawing practice of a kind of plotting unit, wherein, above-mentioned plotting unit Possessing: drawing portion, it is with the finger having fingernail or toe as object, implements to draw to above-mentioned fingernail, above-mentioned drawing practice bag Include following steps: obtain the 1st object image that the above-mentioned object of the above-mentioned fingernail above-mentioned drawing of enforcement is not obtained by imaging Step；Extract inner side in above-mentioned 1st object image, from the 1st object profile of the profile representing above-mentioned object The 1st region remove the region of above-mentioned fingernail and the step of the 1st characteristic point in the 2nd region that obtains；Real to above-mentioned fingernail After executing the 1st drawing, obtain the above-mentioned object of imaging and the step of the 2nd object image that obtains；Extract above-mentioned 2nd object In image, represent the 2nd object profile of the profile of above-mentioned object inner side the 3rd region in the step of the 2nd characteristic point Suddenly；According to above-mentioned 1st characteristic point and above-mentioned 2nd characteristic point, obtain the position of above-mentioned fingernail in above-mentioned 2nd object image Step；And the position according to the above-mentioned fingernail in the above-mentioned above-mentioned 2nd object image got, control obtaining above-mentioned the The above-mentioned drawing portion step to drawing position during enforcement the 2nd drawing of above-mentioned fingernail after 2 object images.
Accompanying drawing explanation
Figure 1A is the front view of the plotting unit in present embodiment, and Figure 1B is represent the plotting unit shown in Figure 1A interior The side view of portion's structure.
Fig. 2 is the II-II sectional view in Figure 1A.
Fig. 3 A is the plane graph of the plotting head in present embodiment, and Fig. 3 B is the side-looking of the plotting head in present embodiment Figure.
Fig. 4 is the major part block diagram of the control structure representing the plotting unit involved by present embodiment.
Fig. 5 A is the figure of the extraction subject area representing the characteristic point in the 1st finger-image, and Fig. 5 B is to represent the 2nd finger figure The figure of the extraction subject area of the characteristic point in Xiang.
Fig. 6 A, Fig. 6 B are the explanatory diagrams of the process representing the drawing process in present embodiment.
Fig. 7 is the flow chart of the summary representing the drawing process in present embodiment.
Fig. 8 is to represent the flow chart that the detection of the nail outline in present embodiment processes.
Fig. 9 A is the plane graph of the printing finger of the fingernail including the original state before drawing, and Fig. 9 B is to include that the 1st draws The plane graph of the printing finger of the fingernail afterwards and before the 2nd drawing, Fig. 9 C is putting down of the printing finger of the fingernail after including the 2nd drawing Face figure.
Detailed description of the invention
Hereinafter, describe nail Printing apparatus (plotting unit) involved in the present invention with reference to the accompanying drawings in detail and fingernail prints dress Put the embodiment of the drawing practice of (plotting unit).
Additionally, in embodiments described below, addition of technical preferred various limits to implement the present invention Fixed, but the scope of the present invention is not limited to following embodiment and illustrated example.
In the following embodiments, nail Printing apparatus 1 is illustrated into the surface of finger fingernail for drawing object face, The device drawn is carried out on the surface of this finger fingernail.But, the drawing object face of the present invention is not limited to finger fingernail Surface, such as can also be using ungual for foot surface as drawing object face.
Figure 1A is the front view of the nail Printing apparatus of the internal structure representing nail Printing apparatus, and Figure 1B is to represent Figure 1A The side view of the internal structure of the nail Printing apparatus illustrated.
Fig. 2 is the sectional view of the II-II line along Figure 1A.
As shown in FIG. 1A and 1B, the nail Printing apparatus 1 in present embodiment possesses plotting head (drawing head) 43 is pen 41 and the ink-jet drawing portion 71 of drawing instrument, is and carrys out the finger to printing finger U1 with plotting mode and ink-jetting style First T implements the plotting unit drawn.
This nail Printing apparatus 1 possesses shell main body 2 and is accommodated in the apparatus main body 10 in this shell main body 2.
Being provided with cap 23 on side surface upper part one end of shell main body 2, this cap 23 is in order to change drawing portion 40 described later Pen 41 and ink-jet drawing portion 71 and can be opened and closed constitute.
Cap 23, such as via hinge etc., rotates freely to open mode from closed mode as shown in Figure 1A like that.
Upper surface (top board) in shell main body 2 is provided with operating portion 25 (with reference to Fig. 4).
Operating portion 25 is the input unit that user carries out various input.
In operating portion 25, such as, it is configured with the power switch button of the power supply connecting nail Printing apparatus 1, makes action stop Shutdown switch button only, the design alternative button of designed image selecting to carry out on fingernail T to draw, instruction are drawn and are started Drawing start buttons etc. are for carrying out the not shown operation button of various input.
Substantially central portion at the upper surface (top board) of shell main body 2 is provided with display part 26.
Display part 26 is such as by liquid crystal display (LCD:Liquid Crystal Display), ORGANIC ELECTROLUMINESCENCE DISPLAYS Device, or other flat faced display etc. constitutes.
In the present embodiment, the most suitably show in this display part 26 printing finger U1 is carried out imaging and obtains Finger-image (including the image of the printing finger U1 of the image of fingernail T), the profile etc. of fingernail T that comprised of this finger-image Image, for select to tackle the design alternative picture of the designed image that fingernail T carries out drawing, design confirmation thumbnail image, Show the instruction picture etc. of various instruction.
In addition it is also possible to be integrally formed the touch panel for carrying out various input on the surface of display part 26.
Apparatus main body 10 is generally formed into box like, possess the lower inside being arranged at shell main body 2 lower casing 11 and It is arranged at the top of this lower casing 11 and the upper housing 12 of the inner upper of shell main body 2.
First, lower casing 11 is described.
Lower casing 11 has backplate 111, base plate 112, the side plate 113a of pair of right and left, 113b, X-direction mobile station receipts Receive portion 114, Y-direction mobile station incorporating section 115 and barrier film 116.
The bottom of side plate 113a, 113b is connected with the both ends, left and right of base plate 112 respectively, side plate 113a, 113b is set For the state erect relative to base plate 112.
The bottom of backplate 111 is formed as forwards (inserting finger orientation nearside) two-stage depression.The lower end of backplate 111 Portion is connected with the leading section of base plate 112.Before the region surrounded by base plate 112 and side plate 113a, 113b is divided into by backplate 111 After.
The space formed at the rear side of the backplate 111 of this depression becomes X-direction mobile station incorporating section 114, Y-direction moves Platform incorporating section 115 (with reference to Figure 1B).
In X-direction mobile station incorporating section 114, forwards (insert finger orientation nearside) in drawing portion 40 and receive when moving The X-direction mobile station 45 in drawing portion 40.
In the Y direction in mobile station incorporating section 115, it is configured with the Y-direction mobile station 47 in drawing portion 40.
Barrier film 116 is arranged at inside lower casing 11, in order to (carried on the back in the space of the inside front side of lower casing 11 Panel 111, base plate 112 and side plate 113a, 113b surround insert finger orientation nearside space) be divided into before and after.
Barrier film 116 is configured to approximate horizontal, and the both ends, left and right of barrier film 116 are connected with side plate 113a, 113b respectively, every The rearward end of film 116 is connected with backplate 111.
Integrally provided with finger fixed part 30 (with reference to Figure 1B) on this lower casing 11.
Finger fixed part 30 is constituted by with lower part: finger receptacles 31, and it accepts corresponding with the fingernail T implementing to draw Finger (following, to be referred to as " printing finger U1 ")；And finger backoff portion 32, it makes the finger beyond this printing finger U1 (following, to be referred to as " non-printing finger U2 ") is kept out of the way.
Finger receptacles 31 is configured at the upside of barrier film 116 and the substantially central portion of the width of lower casing 11.
The space separated in the downside of lower casing 11 by barrier film 116 constitutes finger backoff portion 32.
Such as, in the case of implementing to draw to nameless fingernail T, insert as printing finger to finger receptacles 31 Other four fingers (thumb, forefinger, middle finger, little finger of toe) as non-printing finger U2 are inserted into finger by the third finger of U1 Backoff portion 32.
As shown in Figure 1B and Fig. 2, finger receptacles 31 (prints the near of finger direction of insertion to the front face side of lower casing 11 Side) opening, downside is configured finger mounting portion 116a of a part for barrier film 116 and divides, and be spaced portion 31a, 31b of both sides draws Point, rear side be spaced portion 31c divide.
The finger (printing finger U1) implementing the fingernail T of drawing is placed on X/Y plane by finger mounting portion 116a.
Additionally, in the present embodiment, as described later, carry out printing the one-tenth of finger U1 with finger mounting portion 116a for background Picture, carries out printing the finger areas of finger U1 according to the color of finger mounting portion 116a, the difference etc. of brightness as background Detection, therefore finger mounting portion 116a be contemplated to be as far as possible in image procossing easily with the color of printing finger U1 difference, The such as preferably opposite color of the colour of skin i.e. blueness, black etc..
The upside of finger receptacles 31 is divided by top 31d.Top 31d is formed and accepts for making to be inserted into finger The window 31e that the fingernail T of the printing finger U1 in portion 31 exposes.
Before the both sides of the upper surface of barrier film 116 and the front face side of lower casing 11 set up and block lower casing 11 The antetheca 31f (with reference to Figure 1A) of side, face.
Upper surface at barrier film 116 sets up a pair guiding wall 31g (with reference to Figure 1A), and this pair guiding wall 31g is before this The end by central part of wall 31f is narrow towards the stenosis of above-mentioned finger receptacles 31, and printing finger U1 is directed to finger receptacles In 31.
User can be inserted into the printing finger U1 of finger receptacles 31 and the non-printing being inserted into finger backoff portion 32 Barrier film 116 is sandwiched between finger U2.Therefore, the printing finger U1 being inserted in finger receptacles 31 is stably fixed.
(outlet 24 is inserted with the medium of shell main body 2 corresponding at the upper surface of lower casing 11 and the side of finger receptacles 31 Position, in the present embodiment, for left side in Figure 1A and Fig. 2) be provided with pre-hot write (warm-up drawing) portion 61, This pre-hot write portion 61, in the range of the drawing of plotting head 43 described later, carries out the nib for eliminating pen 41 described later (front End) the pre-hot write of 413 erasings etc. when writing.
Pre-hot write portion 61 is flat part, loads the medium from above-mentioned shell main body 2 and inserts drawing Jie of outlet 24 insertion Matter 61a.
As long as the graphics media 61a being placed in pre-hot write portion 61 can carry out the pre-hot write of nib (leading section) 413 i.e. Can, for example, scraps of paper.
On the upper surface of lower casing 11 and the side of finger receptacles 31 (in the present embodiment, in Figure 1A and Fig. 2 For right side) it is provided with standby region (home area) 60, in this standby region 60, moveable at plotting head 43 described later In the range of, when non-drawing, plotting head 43 is standby.
The quantity (be in the present embodiment one) corresponding with penholder 42 described later it is provided with in standby region 60 Cap 62.
In standby region 60, when nib 413 is accommodated in cap 62 with the position pair being configured with ink-jet drawing portion 71 The position answered is provided with ink-jet maintenance portion 63.
Ink-jet maintenance portion 63 is such as by ink blowing unit (nozzle face) clear for cleaning ink-jet drawing portion 71 described later Clean mechanism, it is used for keeping the lid mechanism etc. (the most not shown) of the moisturizing state of ink blowing unit (nozzle face) to constitute.
Additionally, the configuration in cap 62 in standby region, ink-jet maintenance portion 63 etc. is not limited to the configuration illustrated at this.
Drawing portion 40 possesses plotting head 43, for supporting the unit holding components 44 of plotting head 43, for making plotting head 43 Move to X-direction (X-direction in Figure 1A and Fig. 2, the left and right directions of plotting unit 1) the X-direction mobile station 45 of movement, X-direction Motor 46, it is used for making plotting head 43 to the Y of Y-direction (direction before and after Y-direction in Figure 1B and Fig. 2, plotting unit 1) movement Direction mobile station 47, Y-direction travel motor 48 etc..
Fig. 3 A is the plane graph of the plotting head in present embodiment, and Fig. 3 B is the side view of plotting head.
As shown in Figure 3 A and Figure 3 B, the plotting head 43 of present embodiment is adjacent to the pen being configured with for keeping pen 41 Bar 42 and for keeping the ink-jet keeper 72 in ink-jet drawing portion 71.
Ink-jet drawing portion 71 e.g. with yellow (Y；YELLOW), magenta (M；MAGENTA), cyan (C；CYAN) ink Not shown print cartridge that water is corresponding and each print cartridge are arranged at the face relative with drawing object (fingernail T) (in present embodiment In, below in Figure 1A etc.) the one-piece type head of the print cartridge that forms of not shown ink blowing unit.
Ink blowing unit possesses jet array, and this jet array is made up of multiple nozzles of the ink spraying each color.Spray Ink drawing portion 71 makes ink micronization (micronize), from ink blowing unit to drawing object (fingernail T) to be drawn face direct Spraying ink is drawn.
Additionally, ink-jet drawing portion 71 is not limited to the ink-jet drawing portion of the ink of discharge above three color.Can also Possess the print cartridge for accumulating other ink and ink blowing unit.
The penholder 42 of present embodiment can be installed a pen 41.
Pen 41 is with the surface of fingernail T for drawing object face, and leading section and the drawing object face i.e. surface of fingernail T connects Touch and implement the writing implement drawn.
As shown in Fig. 3 B etc., pen 41 is to be provided with nib in the front (in figure 3b for downside) in a bar-shaped axle portion 411 The pen of 413.
The inside in axle portion 411 is the ink incorporating section for receiving various ink.
As being accommodated in an ink for the inside in axle portion 411, it is possible to apply various ink.Not viscosity, the color to ink The particle diameter (size of particle) etc. of material particularly limits, also such as be able to application have ink wiry or white ink, UV atherosclerotic type ink or gel nails, bottom ink, upper strata ink or nial polish etc..
In the present embodiment, pen 41 e.g. makes to be accommodated in an axle by nib 413 is pressed into the surface of fingernail T Ink in portion 411 ooze out and draw, nib 413 become the pen of ball pen type.
Additionally, pen 41 is not limited to the pen of ball pen type.Pen 41 can also be such as to make ink penetrate into the pen in felted Point and carry out drawing signature pen type, make ink penetrate into carry out the pen etc. of the brush pen type drawn in the hair of binding.
The thickness of nib 413 also is able to prepare various thickness.
Change multiple pen 41 and be installed on penholder 42.Change each ratio 41 in the multiple pens 41 being arranged on penholder 42 Both can be the pen all with same type of nib 413, it is also possible to be the pen with different types of nib 413.
It is inserted into penholder 42 only from above to keep pen 41.Therefore, open the cap 23 being arranged at shell main body 2, such as, use Hands, tweezers, by the upper end excision etc. in an axle portion 411, it is possible to easily be replaced.
Thus, user according to want the fingernail drawn design the pen 41 being installed on penholder 42 is suitably replaced by color, The kind of nib 413, the diverse pen 41 of ink, it is possible to realize fingernail design widely.
Penholder 42 possesses: cartridge 421, and it is to upper and lower opening and internally inserts pen 41；Engaging part 422, its It is configured to block the opening of (downside in Fig. 3 B) on the downside of cartridge 421；And asessory shaft parts 423, itself and pen 41 1 Rise and move up and down.
Being formed with connecting hole 422a in an engaging part 422, this connecting hole 422a is to before in an axle portion 411 of pen 41 Side engages.
The front in axle portion 411 is embedded in the connecting hole 422a of an engaging part 422, and thus pen 41 is engaged in pen In bar 42.
In addition it is also possible to form not shown thread groove at an outer peripheral face for the front in axle portion 411, at connecting hole 422a Inner peripheral surface formed and can carry out the not shown thread groove of twist-on with the thread groove in axle portion, make a thread groove for side, axle portion 411 It is fastened to the thread groove of connecting hole 422a side, thus makes pen 41 engage with connecting hole 422a.
In the present embodiment, in the way of clamping pen 41, two asessory shaft parts 423 it are configured with.
The bottom of each asessory shaft parts 423 is embedded in an engaging part 422.Thus, with the axle portion 411 with pen 41 Parallel mode fixes asessory shaft parts 423.
Asessory shaft parts 423 are provided with to from Bi41Zhou center away from the prominent engaging protrusion 424 in direction.
Coil spring 425 it is wound with around the axle of asessory shaft parts 423.
Coil spring 425 makes asessory shaft parts 423 upward direction exert a force, at non-drawing shape when not applying external force Under state, the position of pen 41 is remained the position that nib 413 does not contacts with fingernail T.
It is provided with near penholder 42: motor 426 used up and down by pen, and it is made up of stepping motor；Gear 428, itself and peace It is loaded on pen ratcheting with the gear 427 in the rotary shaft of motor 426 up and down；And leaf spring 429, it follows the rotation of this gear 428 Turn ground to rotate.
In the present embodiment, it is made up of with motor 426, gear 427, gear 428, leaf spring 429 etc. up and down these pens The elevating mechanism of pen 41.
Here, leaf spring 429 engages with the engaging protrusion 424 being arranged at asessory shaft parts 423, by pressing this engaging protrusion 424, it is possible to downwards by starting writing 41.
That is, with beginning to write up and down, with the rotation of motor 426, leaf spring 429 rotates, and leaf spring 429 engages with engaging protrusion 424, When pressing engaging protrusion 424 downwards, the active force of pen 41 burden coil spring 425 and press downwards.
So, in the present embodiment, it is not with leaf spring 429 directly by starting writing 41, and is set to press engaging protrusion The structure of 424, becomes the structure that leaf spring 429 does not cover the top of pen 41.Therefore, it is possible to easily carry out the replacing of pen 41, and And the height of the elevating mechanism of pen 41 is suppressed relatively low such that it is able to realize saving space.
Here, specifically describe the action of the elevating mechanism of pen 41.
First, when non-drawing, become leaf spring 429 and engaging protrusion 424 is not applied the state of external force.
So, when not applying external force (leaf spring 429 by pressure), the pen 41 effect by coil spring 425 Power, by the position by upward direction (direction in Figure 1A and Fig. 3 B being), the leading section of pen 41 i.e. nib 413 is from drawing object The face i.e. surface of fingernail T is left, and keeps the height not contacted with this surface.
On the other hand, when drawing, make pen rotate with predetermined step number with motor 426 up and down, press card by leaf spring 429 Close projection 424.Thus, pen 41 is pressed.
The height etc. of the fingernail T according to the printing finger U1 being inserted into finger receptacles 31, suitably sets and drives on pen Predetermined step number during lower motor 426.
That is, in the nail Printing apparatus 1 of present embodiment, fingernail information described later is obtained in advance.Then, refer to according to this First information, the i.e. nib 413 in the leading section of pen 41 identifies the height of the fingernail T of the contact position contacted with fingernail T, according to this height Determine that pen is up and down by the step number of motor 426.
Drive pen up and down with motor 426 with the step number so determined, by leaf spring 429 by starting writing 41, thus make pen The nib 413 of 41 is close to the surface of fingernail T and contacts, and applies suitable pen pressure.
Additionally, when drawing, when the height of fingernail T changes along with drawing, increase and decrease pen is up and down with motor 426 every time Step number also adjusts the pen pressure of pen 41, be adjusted to pen pressure approximately fixed while draw.
Here, based on pen up and down with the adjustment of the pen pressure of the increase and decrease of the step number of motor 426, the height change of each fingernail T Change and carry out when only changing scheduled volume (such as, 0.5mm), do not carry out the tune of pen pressure when the height change of fingernail T is less than scheduled volume Whole.But, now there is deflection deformation (elastic deformation) according to the shape leaf spring 429 of fingernail T, thus pen 41 moves down on automatically Dynamic, therefore, it is possible to while making pen 41 reliably contact with fingernail T, pen pressure is remained suitable value.
Additionally, the spring constant of leaf spring 429 little, be set as leaf spring 429 by this spring constant is (outer by pressure Power) fingernail T will not be made to feel the value of the degree such as pain when being applied to fingernail T.
When drawing, suitably bent by leaf spring 429 and absorb the impact that produced by moving up and down of pen 41, And 41 follow the height of fingernail T and upper and lower maintaining the state that nib 413 applies approximately fixed suitable pen pressure to start writing Mobile such that it is able to clearly draw the design of desired fingernail on the drawing object i.e. surface of fingernail T.
Unit holding components 44 is fixed on the X-direction moving part 451 being installed on X-direction mobile station 45.
X-direction moving part 451 driving in X-direction mobile station 45 along not shown by X-direction travel motor 46 Guiding piece and move to X-direction.
Thus, the plotting head 43 of unit holding components 44 it is installed on to X-direction (X-direction in Figure 1A, nail Printing apparatus The left and right directions of 1) mobile.
X-direction mobile station 45 is fixed in the Y-direction moving part 471 of Y-direction mobile station 47.
Y-direction moving part 471 passes through in the driving mobile station 47 in the Y direction of Y-direction travel motor 48 along not shown Guiding piece moves to Y-direction.
Thus, the plotting head 43 of unit holding components 44 it is installed on to Y-direction (Y-direction in Figure 1B, nail Printing apparatus Direction before and after 1) mobile.
Additionally, in the present embodiment, by X-direction travel motor 46, Y-direction travel motor 48 and not shown Ball-screw and guiding piece be combined to constitute X-direction mobile station 45 and Y-direction mobile station 47.
In the present embodiment, constituted as having by X-direction travel motor 46 and Y-direction travel motor 48 etc. The head moving part 49 of the XY drive division that the plotting head 43 of standby pen 41 drives to X-direction and Y-direction.
Pen in drawing portion 40 is up and down by motor 426, ink-jet drawing portion 71, X-direction travel motor 46 and Y-direction Travel motor 48 is connected with the drawing control portion 815 (with reference to Fig. 4) of control device 80 described later, by this drawing control portion 815 are controlled.
Imaging section 50 possesses imaging device 51 and illuminator 52.
This imaging section 50 (is wrapped being inserted into finger receptacles 31 fingernail T that is interior and that observe from window 31e by illuminator 52 Include the printing finger U1 of fingernail T) it is illuminated.
Then, by imaging device 51, this printing finger U1 is carried out imaging, obtain the image i.e. finger of printing finger U1 Image (includes the finger-image of the thumbnail image of fingernail T, object image).
As shown in FIG. 1A and 1B, in the present embodiment, imaging device 51 and illuminator 52 are arranged at top machine Shell 12.
That is, upper housing 12 is provided with substrate 13.
The imaging device 51 and the illuminator 52 that constitute imaging section 50 are provided in below this substrate 13 and barrier film 116 Relatively.
Additionally, the position of the imaging device 51 and illuminator 52 being installed on substrate 13 is not limited to illustrated example.
Imaging device 51 e.g. possesses solid-state imaging element and the lens etc. of the pixel with more than 2,000,000 pixel degree Compact imaging device.
In the present embodiment, following image is obtained by the imaging device 51 of imaging section 50: the 1st finger-image the (the 1st Object image) g1, it is to including that the printing finger U1 implementing the fingernail T of the original state before drawing carries out imaging；And the 2nd Finger-image (the 2nd object image) g2, its to fingernail T implement the 1st drawing after, and to fingernail T implement the 2nd drawing before, The printing finger U1 including fingernail T is carried out imaging.
The printing finger U1 including fingernail T, after and then fingernail T being implemented the 1st drawing, is also entered by imaging device 51 Row imaging, thus obtains the finger-image after drawing.
Further, contour detecting portion 812 described later, para-position process portion 813 and nail outline search section 814 use these Finger-image after 1 finger-image g1, the 2nd finger-image g2 and drawing, detection printing finger U1 and fingernail before the 2nd draws The profile of T.
The illuminator that White LED etc. is e.g. possessed by illuminator 52 as light source.
In the present embodiment, illuminator 52 has 4 light sources, each light source is configured in the both sides of imaging device 51, Nearside and rear side surround imaging device 51.
Each light source of illuminator 52 irradiates light downward, is illuminated the areas imaging below imaging device 51.
Additionally, the quantity of light source that had of illuminator 52, its configuration etc. are not limited to illustrated example.
This imaging section 50 is connected with the imaging control portion 811 (with reference to Fig. 4) of control device 80 described later, by this imaging control Portion 811 processed is controlled.
Additionally, image (that is, the 1st finger-image g1, the 2nd finger-image g2 and painting that will be got by imaging section 50 Finger-image after figure) view data store in the thumbnail image memory area 821 of storage part 82 described later.
Such as, it is arranged on controlling device 80 in substrate 13 grade being configured at upper housing 12.
Fig. 4 is the major part block diagram representing the control structure in present embodiment.
As shown in Figure 4, controlling device 80 is to possess CPU (Central Processing Unit: the central authorities by not shown Processor) the control portion 81 that constitutes and by ROM (Read Only Memory: read only memory) and RAM (Random Access Memory: random access memory) etc. (the most not shown) computer of storage part 82 of constituting.
Storage part 82 stores and has for making the various programs of nail Printing apparatus 1 action, various data etc..
Specifically, in the ROM of storage part 82, storage has the profile for detecting the printing profile of finger U1, fingernail T Contour detecting program, for carry out para-position process para-position processing routine, for search for the region of fingernail T nail outline search for Program, for revise drawing position drawing position revision program, for generate draw data draw data generate program with And for carrying out the various programs such as the mapping program of drawing process.
Perform these programs by controlling device 80, each portion of nail Printing apparatus 1 is uniformly controlled.
In the present embodiment, being provided with in storage part 82: thumbnail image memory area 821, imaging section is passed through in its storage The finger-image of the fingernail T of the printing finger U1 of 50 users obtained；Fingernail information storage area 822, profile is passed through in its storage The fingernail information (the printing profile of finger U1, the profile etc. of fingernail T) that test section 812 detects；And fingernail design memory block Territory 823, the view data of the fingernail design that fingernail T is drawn by its storage.
Functionally, control portion 81 possesses imaging control portion 811, contour detecting portion 812, para-position process portion 813, fingernail wheel Wide search section 814, drawing position correction portion 815, draw data generating unit 816, display control unit 817 and drawing control portion 818 etc..
Realize becoming as these with the cooperation of the program in the ROM being stored in storage part 82 by the CPU in control portion 81 As control portion 811, contour detecting portion 812, para-position process portion 813, nail outline search section 814, drawing position correction portion 815, The function in draw data generating unit 816, display control unit 817 and drawing control portion 818 etc..
Imaging device 51 and the illuminator 52 of imaging section 50 are controlled by imaging control portion 811, pass through imaging device The finger-image of 51 couples of printing finger U1 being inserted in finger receptacles 31 (includes the figure of the printing finger U1 of the image of fingernail T Picture) carry out imaging.
In the present embodiment, imaging control portion 811 obtains following image: the 1st finger-image g1 (with reference to Fig. 6 B), its The printing finger U1 including the fingernail T of the original state before implementing drawing by pen 4, ink-jet drawing portion 71 is made to carry out imaging；With And the 2nd finger-image g2 (with reference to Fig. 6 B), it is after implementing the 1st drawing to fingernail T, and before implementing the 2nd drawing, to including referring to The printing finger U1 of first T carries out imaging.
The printing finger U1 including fingernail T is also carried out after and then fingernail T being implemented the 1st drawing by imaging device 51 Imaging and finger-image (not shown) after obtaining drawing.
The view data of the finger-image got by imaging section 50 is stored the thumbnail image storage of storage part 82 In region 821.
Additionally, below, illustrate according to finger-image (the 1st finger-image g1, the 2nd finger got by imaging section 50 Image g2) printing finger U1, the profile etc. of fingernail T are detected as the situation of fingernail information.But, detect according to finger-image Fingernail information be not limited to this, such as can also detect the curvature etc. of fingernail T according to finger-image.
The print of the contour detecting portion 812 fingernail T before the drawing that the imaging device 51 included by imaging section 50 gets Image that is the 1st finger-image g1 of brush finger U1, detects the 1st finger contours that the region to printing finger U1 divides The 1st nail outline n1 that (the 1st object profile) f1 and the region to fingernail T divide.
Contour detecting portion 812 detects, from the 2nd finger-image g2, the 2nd finger that the region to printing finger U1 divides Profile (the 2nd object profile) f2, wherein, the 2nd finger-image g2 is after implementing the 1st drawing, and implements the 2nd drawing Before, by imaging device 51, the printing finger U1 including fingernail T is carried out imaging and obtain.
Such as, following situation is supposed in the present embodiment: draw as the 1st and pass through pen 41 and smear background color (bottom) Afterwards, after the process of the ink dried being coated in fingernail T that once carries out making drawing by the 1st, draw as the 2nd and pass through pen 41, various patterns etc. are drawn in ink-jet drawing portion 71.Therefore, carry out the 1st drawing time printing finger U1 in fingernail T position and The position of the fingernail T in printing finger U1 when carrying out the 2nd drawing deviates from each other sometimes.
Additionally, in the present embodiment, in the case of a fingernail T is drawn by the number of times more than in three times, will 2nd later drawing is all set to " the 2nd draws ".
Each detection method in contour detecting portion 812 is the most as follows.
First, contour detecting portion 812 is carried out the 1st finger contours f1, the detection of the 1st nail outline n1 are (that is, before drawing The fingernail T of original state and include the detection of profile of printing finger U1 of fingernail T) such as use AdaBoost (Adaptive Boosting: self adaptation strengthen) etc. learning algorithm carry out.
Specifically, in the device fabrication stage, collect the finger of ordinary people, multiple samples of fingernail in advance and be stored in dress Put side.Then, when the 1st finger contours f1, the 1st nail outline n1 detect in contour detecting portion 812, mate with these samples Deng.Thereby, it is possible to be difficult to the detection about by noise.
It is further possible to updating the finger to user afterwards, fingernail T is identified and increased to sample etc. using Data in detection.In this case, it is possible to expect following effect: improve the 1st hands that contour detecting portion 812 is carried out further Finger wheel exterior feature f1, the accuracy of detection of the 1st nail outline n1, or can with carry out finger with user, fingernail T shape more consistent The mode of detection customizes.
Additionally, the 1st finger contours f1 is not detected in contour detecting portion 812, the method for the 1st nail outline n1 is carried out especially Restriction.Here, the various methods beyond illustration can also be used.
Then, contour detecting portion 812 (that is, includes the printing finger U1's of the fingernail T after drawing to the 2nd finger contours f2 Profile) detection, such as use minimum (pattern cut) algorithm that cuts off of figure to carry out.
Specifically, in the finger-image (not shown) after the drawing got after the and then the 1st draws, as printing The sample of colour of finger U1 and obtain corresponding with the inside region of the 1st finger contours f1 detected from the 1st finger-image g1 The distribution of color in region, obtains the color of finger mounting portion 116a becoming background as the sample of background colour.
Then, generate the rectangular histogram of each color respectively according to two two color sample, color is changed position inspection greatly Survey the border for printing finger U1 with finger mounting portion 116a, the i.e. the 2nd finger contours f2.
Additionally, the method that contour detecting portion 812 is not detected the 2nd finger contours f2 particularly limits.At this also The various methods beyond illustration can be used.
The position of the para-position process portion 813 the 1st finger contours f1 to being detected by contour detecting portion 812 is modified, and enters Row processes close to the para-position of the position of the 2nd finger contours f2.
Here, the 1st finger contours f1 and profile that the 2nd finger contours f2 is identical finger.But, detecting the 1st hands The time point of finger wheel exterior feature f1 and the time point detecting the 2nd finger contours f2, sometimes the position phase of the fingernail T in printing finger U1 Skew mutually.In this case, the position of the 1st finger contours f1 and the position of the 2nd finger contours f2 become the position offset from each other. Further, detecting the time point of the 1st finger contours f1 and detecting the time point of the 2nd finger contours f2, sometimes to print hands Refer to U1 the direction of rotation that length direction is axle towards the most mutually different.In this case, the shape of the 1st finger contours f1 with The shape of the 2nd finger contours f2, even if it is the most inconsistent to adjust mutual position.Thus, only processed by para-position, sometimes cannot be with High accuracy obtains the dislocation of the 2nd finger contours f2 relative to the 1st finger contours f1.
Therefore, in the present embodiment, it is set to use the characteristic point of following description to carry out the structure of para-position process.
Additionally, as described later, such as cannot carry out well owing to can not find certain situations such as effective characteristic point In the case of the para-position of characteristic point processes, para-position process portion 813 according to the 1st, the 2nd finger contours f1, f2 enter para-position position and process.
Para-position process portion 813 is in the para-position using characteristic point processes, specifically, from the 1st finger-image g1 and the 2nd finger Image g2 extracts characteristic point for para-position respectively.Here, the peculiar shape of the wrinkle of characteristic point for example, skin, muscle etc. Shape, the distinctive color change etc. caused by the speckle of skin, melanotic nevus etc..
Now, the characteristic point in the 1st finger-image g1 only from be equivalent to finger region (that is, be not the region of fingernail T, The region of skin) region in extract.
Fig. 5 A is the figure of the example representing the extraction subject area of the characteristic point in the 1st finger-image g1 and characteristic point, figure 5B is the figure of the example representing the extraction subject area of the characteristic point in the 2nd finger-image g2 and characteristic point.
As shown in Figure 5A, the extraction subject area of the characteristic point in the 1st finger-image g1 is from being detected as the 1st finger contours The inside region of the profile of the printing finger U1 of f1 deducts the inside region of the profile of the fingernail T being detected as the 1st nail outline n1 And the region e1 obtained (in fig. 5 for the region represented by white).Additionally, in fig. 5, in the 1st nail outline n1, by void Line represents the position that the parts of skin with finger contacts, and represents characteristic point C1 by dotted line.
As shown in Figure 5 B, the extraction subject area of characteristic point C2 in the 2nd finger-image g2 is to be detected as the 2nd finger contours Inside region e2 (region represented by white in figure 5b) of the profile of the printing finger U1 of f2.In figure 5b, dotted line bag is used Enclose and represent characteristic point C2.
Here, about the 2nd finger-image g2, contour detecting portion 812 do not carries out the detection of nail outline, therefore the 2nd Characteristic point C2 in finger-image g2 also includes the characteristic point in fingernail T region.
But, the characteristic point in fingernail T region is carrying out and when the mating of characteristic point C1 in the 1st finger-image g1, essence On be excluded.Therefore, detection afterwards is not produced impact.
When the 1st finger-image g1 and the 2nd finger-image g2 are extracted respective characteristic point C1, C2, para-position process portion 813 Use characteristic point C1 extracted, C2 to generate the transformation matrix of para-position.
Specifically, to carrying out between characteristic point C1 extracted from the 1st finger-image g1 and the 2nd finger-image g2, C2 Join, use the group of characteristic of correspondence point, the transformation matrix as shown in production 1.
[formula 1]
Additionally, comprise wanting of the moving in parallel of the two dimension of finger, the rotation of two dimension and amplification/reduce in transformation matrix Element.
Here, transformation matrix is set to similitude transformation matrix, para-position process portion 813, according to this similitude transformation matrix, is carried out The para-position making the position consistency of the 1st finger contours f1 and the 2nd finger contours f2 processes.
Additionally, the method para-position process portion 813 not being carried out para-position process particularly limits.At para-position Reason, it is possible to use the various methods beyond illustrating at this.
Such as, in the case of the coupling number of characteristic point is few, or in the case of cannot generating transformation matrix, para-position processes Portion 813 uses based on the 1st, the 2nd finger contours f1, the finger areas map of f2 carry out para-position process.
In the case of carrying out para-position based on map process, such as, use pattern match based on phase information i.e. phase place Limit method of correlation etc..
The para-position in nail outline search section 814 and para-position process portion 813 process after the 1st finger contours f1 accordingly to the The coordinate of 1 nail outline n1 converts, in the 2nd finger-image g2 search with coordinate transform after the 1st nail outline n1 pair The 2nd nail outline n2 answered.
The method not converted nail outline search section 814 to the coordinate of the 1st nail outline n1 is carried out particularly Limit.
Such as, in the case of there is the transformation matrix (with reference to above-mentioned formula 1) by the generation of para-position process portion 813, using should The coordinate of the 1st nail outline n1 is converted by transformation matrix, obtains the finger that the 1st finger contours f1 after processing is corresponding with para-position The coordinate of first profile.
Here, think the finger of fingernail T that the 1st nail outline n1 after this coordinate transform and the 2nd finger-image g2 comprised Profile n2 is substantially uniform for first.
Then, (that is, the 1st nail outline n1's after coordinate transform is interior by the region of fingernail T for nail outline search section 814 Side region) upper area (region of fingernail front) that is divided on the bearing of trend (longitudinal direction in Fig. 6 A) of fingernail T and under Region, portion (region of onychorrhiza side).
Fig. 6 A is the explanatory diagram of an example of the split position in the region representing fingernail T.
In the present embodiment, as shown in Figure 6A, it is shown that (that is, the coordinate of nail outline is located in the upper end of fingernail T Part in the side foremost of fingernail) (that is, the coordinate of nail outline is in the root side of fingernail with the bottom of fingernail T Part) mid portion, the example in region of segmentation fingernail T.
Nail outline search section 814 is in the lower area of fingernail T, after the para-position process in para-position process portion 813 In 1st finger-image g1 and between the 1st nail outline n1 after coordinate transform boundary member, carries out using the skin of finger The template matching of the texture in region, thus search the 2nd nail outline n2.
Fig. 6 B is the explanatory diagram of the imaging schematically showing template matching based on nail outline search section 814.
In template matching based on nail outline search section 814, the brightness of the 1st finger-image g1 after para-position processes In image, the some i of in the point constituting the 1st nail outline n1, to belong to fingernail T lower area (is used stain table in fig. 6 Show) each coordinate be set to (x1, y1)～(xn, yn).
Further, as shown in Figure 6B, by region d1～dn of the surrounding p × p of each point i (in fig. 6b with solid line quadrangle table The region shown) the texture of skin area of finger be set to template Ti.
Further, nail outline search section 814 in the luminance picture of the 2nd finger-image g2, coordinate (x1, y1)～(xn, In the region (region represented with dotted line quadrangle in fig. 6b) of periphery w × w yn), the point of search closest approach i.
Additionally, para-position process after the 1st finger-image g1 in constitute the 1st nail outline n1 point, such as fingernail T's 100 degree are such as set on all-round.
Further, the some i (representing with stain in fig. 6) of the lower area being positioned at fingernail T is therein substantially 1/2 i.e. example Such as 50 degree.
Additionally, what degree the region of p × p and the region of w × w are set to it is defined the most especially, according to figure The sizes of picture etc. suitably set.
Furthermore it is preferred that the size of the twice degree in the region that the region of w × w is p × p.
On the other hand, for the upper area of fingernail T, generally, the region of finger skin is more less than lower area.Therefore, It is difficult to above-mentioned template matching.Therefore, for the upper area of fingernail T, nail outline search section 814 detects fingernail T-phase pair In the edge of background, search for the 2nd nail outline n2.
Here, the finger that background refers to imaging together with the printing finger U1 including fingernail T in the 2nd finger-image g2 carries Put portion 116a.
As it has been described above, the contrast of the printing finger U1 in order to improve and include fingernail T, finger mounting portion 116a is by the colour of skin Opposite color, black parts constitute.
Nail outline search section 814 by observing finger mounting portion 116a and the color distortion of fingernail T, luminance difference, The 1st finger-image g1 after para-position process constitutes the point of in the point of the 1st nail outline n1, to belong to fingernail T upper area In (being shown by white dots in fig. 6), relative to searching for the position that edge strength is the highest in the range of the normal direction of profile.
Thus, nail outline search section 814 detects the edge of fingernail T, generates edge image.
Additionally, short at fingernail T, and in the case of fingernail T is positioned at than the fore-end inside of finger, the skin region of finger Territory becomes " background ".In this case, nail outline search section 814 is for the edge of the detection of skin regions fingernail T of finger.
Further, nail outline search section 814 makes the lower area of fingernail T and the fingernail T searched for respectively by each method Upper area profile as one man, carry out smoothing (Smoothing) and process.
The method carrying out this smoothing processing is not particularly limited.Such as, as the method being smoothed, The methods such as Snakes (Active Contour Model: active contour model) can be used.
Snakes is method based on minimum energy principle, and the profile using the method to obtain becomes to be made as shown in Equation 2 The profile that energy function minimizes.
Additionally, in formula 2, Econt, i are and the distance of adjacent profile point that Ecurv, i are curvature, Eimage, i be with The item that edge strength is relevant.
[formula 2]
Ei=α ECont, i+βECurv, i+γEImage, iFormula 2
Drawing position correction portion 815 is according to the 1st nail outline n1 and the 2nd searched by nail outline search section 814 The mutual alignment side-play amount of nail outline n2, the correction value of drawing position when calculating for revising the 2nd drawing.
The correction value calculated by drawing position correction portion 815 is sent to draw data generating unit 816, draw data Generating unit 816 carries out the correction of view data according to this correction value.
Draw data generating unit 816 is according to the fingernail T's detected by contour detecting portion 812, nail outline search section 814 Profile, generates the drawing data implemented the fingernail T of printing finger U1 by plotting head 43.
Draw data generating unit 816 according to the profile of fingernail T, makes the shape one of view data that fingernail designs and fingernail T Cause, suitably carry out curved surface correction etc..
Further, in the case of drawing position correction portion 815 calculates the correction value of drawing position, this correction value is made to reflect In view data.
Thus, generate by pen 41, the data of the drawing of the fingernail design of ink-jet drawing portion 71 drafting.
Display control unit 817 controls display part 26, makes display part 26 show various display picture.
In the present embodiment, display control unit 814 such as makes selection picture, the design that display part 26 shows that fingernail designs Confirmation thumbnail image, printing finger U1 is carried out imaging and the finger-image got, various instruction picture, operation screen Deng.
Drawing control portion 818 is according to the draw data generated by draw data generating unit 816, and to drawing portion 40, output controls Signal, paints with motor 426, ink-jet up and down to the X-direction travel motor 46 in drawing portion 40, Y-direction travel motor 48, pen Figure portion 71 etc. is controlled so that fingernail T is implemented the drawing corresponding with this draw data.
Specifically, drawing control portion 818, when the non-drawing of pen 41, controls pen up and down with motor 426, passes through leaf spring 429 maintain the state that engaging protrusion 424 is pressed.
When the drawing of pen 41, make pen up and down with motor 426 action, press engaging protrusion 424 by leaf spring 429, control Pen processed up and down with the action of motor 426 to make the leading section (nib 413) of pen 41 contact with the surface of fingernail T.
Additionally, only there is big change by the height of fingernail T and leaf spring 429 deflection deformation (elastic deformation) cannot be tackled Position, drawing control portion 815 suitably increases and decreases pen and adjusts the pen pressure of pen 41 up and down by the step number of motor 426, preferably with Pen presses approximately fixed mode to be adjusted.
Then, the drawing practice of nail Printing apparatus 1 in present embodiment is described with reference to Fig. 7 to Fig. 9.
Fig. 7 is the flow chart of the summary of the drawing process of the nail Printing apparatus 1 representing present embodiment.
Fig. 8 is to represent the flow chart that the detection of the nail outline in present embodiment processes.
Fig. 9 A is the plane graph of the printing finger U1 of the fingernail T including the original state before drawing, and Fig. 9 B is to include that the 1st paints The plane graph of the printing finger U1 of the fingernail T after figure and before the 2nd drawing, Fig. 9 C is the printing hands of the fingernail T after including the 2nd drawing Refer to the plane graph of U1.
In the case of being drawn by this nail Printing apparatus 1, first, user switches on power switch to start control Device 80.
When selecting the fingernail design that fingernail T is drawn and printing finger U1 being placed on finger receptacles 31, such as Fig. 7 institute Showing, before starting plotting motion, first, imaging control portion 811 controls imaging section 50, by illuminator 52 illumination print Brush finger U1, carries out imaging by imaging device 51 to printing finger U1.
Thus, the printing finger of the original state before fingernail T draws as shown in imaging control portion 811 obtains Fig. 9 A 1st finger-image g1 (step S1) of U1.
Afterwards, drawing control portion 818 makes drawing portion 40 action carry out the 1st drawing (step S2).Thus, such as Fig. 9 B institute Show, become the state that fingernail T entirety has been coated with ink.
When carrying out the 1st drawing, and then, imaging control portion 811 makes imaging device 51 action enter printing finger U1 Row imaging.
Thus, the finger-image (step after imaging control portion 811 obtains the drawing implementing the 1st drawing for fingernail T S3)。
Afterwards, carry out making (steps S4) such as the ink dried that is applied on fingernail T.
Then, before carrying out the 2nd drawing, imaging control portion 811 makes imaging device 51 action come printing finger again U1 carries out imaging.
Thus, imaging control portion 811 obtains and implements the 1st drawing for fingernail T, and implements the printing finger before the 2nd drawing The image of U1 that is the 2nd finger-image g2 (step S5).
When obtaining 2 finger-image g2, before starting the 2nd drawing, at current point in time, the most and then start the 2nd Position detection (step S6) of the nail outline (the 2nd nail outline n2) of the fingernail T before drawing.
Here, describe position detection (step S6) of the nail outline of the fingernail T before the 2nd drawing starts in detail with reference to Fig. 8.
As shown in Figure 8, first, contour detecting portion 812 is from image that is the of the printing finger U1 of the fingernail T included before drawing 1 finger-image g1 detects the 1st finger contours f1 and the 1st nail outline n1 (step S11).
Then, contour detecting portion 812 detects the 2nd finger contours f2 (step S12) from the 2nd finger-image g2.
Then, para-position process portion 813 extracts the spy for para-position respectively from the 1st finger-image g1 and the 2nd finger-image g2 Levy some C1, C2 (step S13).
After respectively the 1st finger-image g1 and the 2nd finger-image g2 being extracted characteristic point C1, C2, para-position process portion 813 Use characteristic point C1, the C2 extracted, attempt generating the transformation matrix of para-position.
Next, it is determined whether generate transformation matrix (step S14).
In the case of can generating transformation matrix (step S14: "Yes"), use this transformation matrix, carry out making the 1st finger The para-position of the position consistency of profile f1 and the 2nd finger contours f2 processes (step S15).
It addition, generate (step S14: "No") in the case of transformation matrix failing, para-position process portion 813 uses based on the 1, the finger areas map of the 2nd finger contours f1, f2, carries out making the 1st finger contours f1 and the position consistency of the 2nd finger contours f2 Para-position process (step S16).
When para-position based on para-position process portion 813 has processed, nail outline search section 814 process with para-position after the 1 finger contours f1 converts (step S17) to the coordinate of the 1st nail outline n1 accordingly.
Then, (that is, the 1st nail outline n1's after coordinate transform is interior by the region of fingernail T for nail outline search section 814 Side region) top (fingernail front) that is divided on the bearing of trend of fingernail T and bottom (onychorrhiza side) (step S18).
Then, in the lower area of fingernail T, nail outline search section 814 is by the 1st finger after processing for para-position Boundary member between in image g1 and the 1st nail outline n1 after coordinate transform carries out template matching, thus search the 2nd finger First profile n2 (step S19).
In the upper area of fingernail T, nail outline search section 814 detects the edge of the fingernail T relative to background, thus Search for the 2nd nail outline n2 (step S20).
When respectively the lower area of fingernail T and the upper area of fingernail T being searched for the 2nd nail outline n2, nail outline Search section 814 with the 2nd nail outline n2 of the lower area of fingernail T and the upper area of fingernail T as one man, is put down further Sliding process (step S21).
Thus, the position (that is, the position of the 2nd nail outline n2) of fingernail T carried out before the 2nd drawing is detected.
Then, the position (that is, the position of the 1st nail outline n1) of the fingernail T of the original state before drawing with enter Row the 2nd draw before the position (that is, the position of the 2nd nail outline n2) of fingernail T exist and offset from each other in the case of, drawing position Correction portion 815 calculates the correction value (step S7) for revising drawing position.
The correction value calculated by drawing position correction portion 815 is reflected in the 2nd drawing in draw data generating unit 816 In draw data (step S8).
Then, drawing control portion 818 makes drawing portion 40 action, carries out thus according to the revised draw data of drawing position 2nd draws.
Thus, the pattern as shown in Fig. 9 C will not be drawn on (step S9) on fingernail T with misplacing.
As it has been described above, according to present embodiment, obtain the 1st finger-image g1 before drawing, after implementing the 1st drawing, Before implementing the 2nd drawing, obtain the 2nd finger-image g2, detect the 1st finger contours f1 and the 1st fingernail from the 1st finger-image g1 Profile n1, and detect the 2nd finger contours f2 from the 2nd finger-image g2.
Then, carry out making the para-position of the position consistency of the 1st finger contours f1 and the 2nd finger contours f2 to process, at para-position The coordinate of the 1st nail outline n1 is converted by the 1st finger contours f1 after reason accordingly, searches for from the 2nd finger-image g2 The 2nd nail outline n2 corresponding for nail outline n1 with the 1st after coordinate transform.
So, in the case of implementing to draw to fingernail T several times, before the 2nd later drawing, judge the finger of fingernail T First profile has dislocation-free.Therefore, in the case of during carrying out till next is drawn, the position of fingernail T is moved, it is also possible to prevent Drawing position offsets, and carries out high-quality drawing.
Then, when detecting the 2nd nail outline n2 before the 2nd draws, first, detect fingernail T's according to the profile of finger Approximate location, afterwards, accurately searches for the profile of fingernail T.
Thus, compared with the profile searching only for fingernail T, it is possible to detect the position of fingernail T expeditiously.
When implementing to draw, the color of fingernail T, brightness are different from the fingernail T of the original state before drawing, the simplest Ground compares the fingernail T before and after the 1st drawing, it is difficult to the profile of the fingernail T after detection the 1st drawing.
This point, in the present embodiment, at least with the lower area of the fingernail T contacted with the skin area of finger, By making the Texture Matching of the skin area of the finger adjacent with fingernail T-phase search for the profile of fingernail T.
So, the profile of fingernail T, the fingernail T from there through drawing are searched for according to unconverted region before and after drawing Color, brightness changes, it is also possible to grasp the position of fingernail T exactly.
Then, suitably carry out the correction of drawing position according to the profile of the fingernail T so obtained, even if therefore dividing many Secondary to fingernail implement draw in the case of, it is also possible to carry out drawing position without skew high-quality drawing.
Additionally, be explained above embodiments of the present invention, but the present invention is not limited to above-mentioned embodiment, it is possible to Various deformation is carried out in scope without departing from the spirit.
Such as, split position when nail outline search section 814 is split fingernail region is shown in the present embodiment It is set to the example of the upper end of fingernail T and the mid portion of the bottom of fingernail T.But, the split position of fingernail region is not It is defined in this.
For the lower area of fingernail T, in order to carry out high-precision template matching, therefore it is categorized as the region of lower area The biggest, matching precision more improves.It is thus possible, for instance the ratio on the top of fingernail T with bottom can also be set to 4 to 6 etc., bottom Region is bigger than upper area.
The template matching carried out for lower area is carried out at the skin area adjacent with fingernail T-phase.It is thus possible, for instance fingernail T In the case of short and fingernail T periphery is almost surrounded by skin area, almost whole fingernail territorial classifications are lower area and Carry out template matching, the feelings that such as very small region of the bottom of fingernail T length and fingernail T is surrounded by parts of skin in a wider context Under condition, it is impossible to carry out template matching in the part do not surrounded by parts of skin.Accordingly it is also possible to the finger of user, fingernail Shape the most suitably changes the split position of fingernail region, in order to almost whole fingernail region is categorized as upper zone Territory.
In such manner, it is possible to carry out being more suitable for the search of the nail outline of user's fingernail.
In the present embodiment, the situation of a penholder 42 is possessed exemplified with plotting head 43.But, it is arranged at plotting head 43 The quantity of penholder 42 be not limited to one.For example, it is also possible to possess plural penholder 42, two or more is kept to draw Pen 41.
In the present embodiment, the feelings of the pen 41 making penholder 42 keep are changed the most in a manual manner exemplified with user Condition.But, such as, the standby space making pen 41 standby can also be set in the grade of standby region 60, changed by not shown pen Mechanism automatically in standby space obtain needed for pen 41 and be replaced by penholder 42.
In the present embodiment, grade fixed configurations imaging device 51 He exemplified with the top at nail Printing apparatus 1 The situation of illuminator 52.But, imaging device 51 is set, the position of illuminator 52 is not limited to this.
For example, it is also possible to carry imaging device 51, illuminator 52, imaging device 51 and illuminator on plotting head 43 52 are moved with plotting head 43 integratedly by head moving part 49.
In this case, such as from mutually different multiple directions, fingernail T can be carried out imaging, it is possible to obtain exactly The curvature etc. of fingernail T, it is possible to carry out high-precision curved surface correction.
Additionally, in the case of imaging section 50 is set to this structure, it is also preferred that the 1st finger-image g1, the 2nd finger-image Finger-image after g2 and drawing is all from same position, the imaging of same direction.
In the present embodiment, finger is inserted in singly device and carries out the fingernail printing dress drawn successively As a example by putting 1.But, additionally it is possible to apply the present invention to following device: for multiple fingers, it is possible to do not extract each finger out and company Carry out drawing continuously, the device of the removal of ink.
Such as, additionally it is possible to expand, by the operating range expanding pen, the scope that can draw, insert multiple the most at the same time Under the state of printing finger U1, the fingernail to each finger is implemented to draw continuously.
This concludes the description of several embodiments of the invention, but the scope of the present invention is not limited to above-mentioned embodiment party Formula, also includes scope and the equivalency range thereof of invention described in the scope of requirement patent protection.

Claims (14)

1. a plotting unit, it is characterised in that possess:
Drawing portion, it is with the finger having fingernail or toe as object, implements to draw to above-mentioned fingernail；And control portion, its control Make the action in above-mentioned drawing portion,
The characteristic point that the extraction of above-mentioned control portion is following:
(1) the 1st characteristic point, its be imaging above-mentioned fingernail is not implemented the above-mentioned object of above-mentioned drawing and get the 1st right As in object image, from the 1st above-mentioned fingernail of region removal of the inner side of the 1st object profile of the profile representing above-mentioned object Region and characteristic point in the 2nd region that obtains, (2) the 2nd characteristic points, it is after above-mentioned fingernail is implemented the 1st drawing The above-mentioned object of imaging and in the 2nd object image that gets, the 2nd object profile of the profile that represents above-mentioned object Inner side the 3rd region in characteristic point,
According to above-mentioned 1st characteristic point and above-mentioned 2nd characteristic point, obtain the position of above-mentioned fingernail in above-mentioned 2nd object image,
According to the position of the above-mentioned fingernail in the above-mentioned above-mentioned 2nd object image got, control obtaining above-mentioned 2nd object After object image, above-mentioned drawing portion is to drawing position during enforcement the 2nd drawing of above-mentioned fingernail.
Plotting unit the most according to claim 1, it is characterised in that
Above-mentioned drawing portion is to above-mentioned fingernail ink and implements above-mentioned drawing,
Above-mentioned fingernail enforcement the 1st is being drawn and is being carried out making to be coated on above-mentioned fingernail by above-mentioned 1st drawing by above-mentioned control portion Above-mentioned ink dried dried after, state on the implementation the 2nd drawing before, obtain the above-mentioned object of imaging and obtain Above-mentioned 2nd object image.
Plotting unit the most according to claim 1, it is characterised in that
Above-mentioned control portion has: para-position process portion, and it is according to above-mentioned 1st characteristic point and above-mentioned 2nd characteristic point, to above-mentioned 1st right As the position of thing profile is modified, the para-position carrying out the position close to above-mentioned 2nd object profile processes,
The result processed according to the above-mentioned para-position in above-mentioned para-position process portion, obtains the above-mentioned finger in above-mentioned 2nd object image The position of first.
Plotting unit the most according to claim 3, it is characterised in that
Above-mentioned control portion has: contour detecting portion, and it detects above-mentioned 1st object profile from above-mentioned 1st object image And the 1st nail outline that the region of above-mentioned fingernail divided,
According to above-mentioned 1st object profile and above-mentioned 1st nail outline, extract above-mentioned 2nd district in above-mentioned 1st object image Territory.
Plotting unit the most according to claim 4, it is characterised in that
Above-mentioned control portion possesses: nail outline search section, its above-mentioned 1st object profile carried out with above-mentioned para-position process portion The position of above-mentioned 1st nail outline is revised in the correction of position accordingly, according to the position of above-mentioned revised above-mentioned 1st nail outline Put, search for the position of the 2nd nail outline that the profile to the above-mentioned fingernail in above-mentioned 2nd object image divides.
Plotting unit the most according to claim 5, it is characterised in that
The region segmentation of the above-mentioned fingernail in above-mentioned 2nd object image is prolonging of above-mentioned fingernail by above-mentioned nail outline search section Stretch the upper area of the front of above-mentioned fingernail on direction and the lower area of the root side of above-mentioned fingernail,
For above-mentioned lower area, carry out frontier district based in above-mentioned 1st object image and above-mentioned 1st nail outline The template matching of the texture in the region beyond the inside region of above-mentioned 1st nail outline in territory, thus searches for above-mentioned 2nd fingernail wheel Exterior feature,
For above-mentioned upper area, in above-mentioned 2nd object image, detect the region of above-mentioned fingernail and become above-mentioned fingernail The edge in region of background, thus search for above-mentioned 2nd nail outline.
Plotting unit the most according to claim 5, it is characterised in that
Above-mentioned control portion possesses: drawing position correction portion, and it refers to according to the detected by above-mentioned nail outline search section the above-mentioned 2nd The position of first profile, calculates for revising above-mentioned drawing position when above-mentioned fingernail is implemented above-mentioned 2nd drawing by above-mentioned drawing portion The correction value put.
8. a drawing practice for plotting unit, wherein, above-mentioned plotting unit possesses: drawing portion, its with have fingernail finger or Toe is object, implements to draw to above-mentioned fingernail,
Above-mentioned drawing practice comprises the following steps:
Obtain the step of the 1st object image that the above-mentioned object of the above-mentioned fingernail above-mentioned drawing of enforcement is not obtained by imaging；
Extract in above-mentioned 1st object image, from the of the inner side of the 1st object profile of the profile representing above-mentioned object The step of the 1st characteristic point in the 2nd region that 1 region is removed the region of above-mentioned fingernail and obtained；
After above-mentioned fingernail is implemented the 1st drawing, obtain the above-mentioned object of imaging and the step of the 2nd object image that obtains Suddenly；
Extract the 2nd object profile of in above-mentioned 2nd object image, to represent above-mentioned object profile inner side the 3rd The step of the 2nd characteristic point in region；
According to above-mentioned 1st characteristic point and above-mentioned 2nd characteristic point, obtain the position of above-mentioned fingernail in above-mentioned 2nd object image Step；And
According to the position of the above-mentioned fingernail in the above-mentioned above-mentioned 2nd object image got, control obtaining above-mentioned 2nd object The above-mentioned drawing portion step to drawing position during enforcement the 2nd drawing of above-mentioned fingernail after object image.
The drawing practice of plotting unit the most according to claim 8, it is characterised in that
This drawing practice comprises the steps:
Above-mentioned drawing portion is to above-mentioned fingernail ink the step of implementing above-mentioned drawing；And
Make the step of the above-mentioned ink dried being coated on above-mentioned fingernail by above-mentioned drawing,
The above-mentioned ink dries being coated on above-mentioned fingernail by above-mentioned 1st drawing is exercised above-mentioned fingernail enforcement the 1st drawing is gone forward side by side After dry step, before stating the 2nd drawing on the implementation, perform to obtain the step of above-mentioned 2nd object image.
The drawing practice of plotting unit the most according to claim 8, it is characterised in that
This drawing practice comprises the steps: according to above-mentioned 1st characteristic point and above-mentioned 2nd characteristic point, to above-mentioned 1st object wheel Wide position is modified, and carries out the step that the para-position of the position close to above-mentioned 2nd object profile processes,
The step of the position obtaining the above-mentioned fingernail in above-mentioned 2nd object image comprises the steps: at according to above-mentioned para-position The result of reason, obtains the step of the position of above-mentioned fingernail in above-mentioned 2nd object image.
The drawing practice of 11. plotting units according to claim 10, it is characterised in that
This drawing practice comprises the steps:
From above-mentioned 1st object image, detect above-mentioned 1st object profile and the region to above-mentioned fingernail divides The step of the 1st nail outline；And
According to above-mentioned 1st object profile and above-mentioned 1st nail outline, extract above-mentioned 2nd district in above-mentioned 1st object image Territory.
The drawing practice of 12. plotting units according to claim 11, it is characterised in that
This drawing practice comprises the steps:
Above-mentioned 1st fingernail wheel is revised in the correction processing the position of above-mentioned 1st object profile carried out with above-mentioned para-position accordingly The step of wide position；And
According to the position of above-mentioned revised above-mentioned 1st nail outline, search is to the above-mentioned fingernail in above-mentioned 2nd object image Profile carry out the position of the 2nd nail outline divided.
The drawing practice of 13. plotting units according to claim 12, it is characterised in that
The step searching for above-mentioned 2nd nail outline comprises the steps:
By the above-mentioned fingernail on the bearing of trend that region segmentation is above-mentioned fingernail of the above-mentioned fingernail in above-mentioned 2nd object image The upper area of front and the lower area of root side of above-mentioned fingernail；
In above-mentioned lower area, carry out frontier district based in above-mentioned 1st object image and above-mentioned 1st nail outline The template matching of the texture in the region beyond the inside region of above-mentioned 1st nail outline in territory, thus searches for above-mentioned 2nd fingernail wheel Wide；And
In above-mentioned upper area, in above-mentioned 2nd object image, detect the region of above-mentioned fingernail and become above-mentioned fingernail The edge in the region of background, thus searches for above-mentioned 2nd nail outline.
The drawing practice of 14. plotting units according to claim 12, it is characterised in that
It is upper that this drawing practice comprises the steps: that the step according to the position by searching for above-mentioned 2nd nail outline detects State the position of the 2nd nail outline, calculate for revise above-mentioned drawing portion to above-mentioned fingernail implement above-mentioned 2nd draw time above-mentioned The correction value of drawing position.
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